Jean-Joseph-Xavier Bidauld works in the upper reaches of the value scale, creating an atmosphere of brightness and expansiveness. Jean-Joseph-Xavier Bidauld tilts toward cool - blues and silver-greys carry the structural weight. Colours are neither washed out nor blazing; they occupy the productive middle ground of the chroma scale. The most saturated colour, #53431E, is reserved to 1.3% of the surface, where it acts as a focal punctuation. Spanning 47 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Jean-Joseph-Xavier Bidauld's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.